Window ventilator



Feb. 28, 1928. 1,660,972

c. E. MUNROE WINDOW VENTILATOR Fil'ed m 21. 1927 Patented Feb. 28, 1928.

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WINDOW VENTILATOR.

Application filed Kay 21, 1927. Serial No. 193,112.

in the bracketsfirmly and without rattling or accidental escape; to accommodate plates of various thicknesses; and to attain these ends in a simple and inexpensive structure. My invention conslsts in attaching the spring member at a medial point in 11S length; in providing a pivotal or rocking attachment thereof; in positioning the attaching portion of the spring in a plane at right angles to the plane of the resilient portions; and in affording a two point contact of the free ends of a single spring, rather than a singlecontact of the middle of a spring having its ends anchored.

In the accompanying drawings which form a part of this invent-ion Figure 1 is a fragmentary front elevatlon of a window upon which a ventilator embodying my invention is mounted,

Figure 2, a section of-the same taken on line 2-2 of Figure 1, Figure 3, a corresponding section of the ventilator showing parts in a second position Figures 4 and 5, fragmentary sections of the same taken on lines H and 5-5 respectively of Figure 3, and

Figure 6, a modification of my invention.

Like reference characters indicate like parts throughout the views.

My ventilator is herein shown in con unction with a window frame 9, and a window sash 11, all of any usual or preferred construction.

End brackets, represented generally by 13, are provided for supporting the shield or plate 15 preferably of glass. Each bracket shown in Figures 1 to 5 inclusive comprises a substantially triangular plate 16 having in its vertical margin a series of perforations 17 to accommodate attaching screws 18. Integral with its inclined or outer vertical edge is an inwardly directed tions 35 pivoted by pin 36 in their lower longitudinal flange20 disposed at right angles to the plane of the plate 16. In this instance an inturned flange 21 upon the upper or horizontal edge of the plate is spaced as at 22 from the flange 20. The shield 15 abuts against the inner face of the flange 20. and is frictionally held in engagement therewith by an oblong broad spring clamping member 24 of thin metal comprising an elevated central portion 25, inclined arm portions 26, upturned terminal lip portions 27, and a lug 28, projecting from a lateral edge of the central portion disposed at right 05 angles to the latter and integral therewith. The lug has a hole 30 to receive a pivot pin 32 in the plate 16 at a point a shorter distance from the flange 20 than the length of the clamping member.

By reason of the pivotal character of the clamping member 24 and the location of the flange 20 within the radius of its movement the insertion of a shield of any thickness between the member and flange is greatly facilitated. This is illustrated in Figure 3 wherein the shield 15 is shown about to be interengaged. In Figure 2 the shield is shown fully inserted and tightly held against the flange. It will be observed that while the spring arms contribute to the pressure brought to bear upon the shield, thispressure is augmented by the described pivotal construction of the clamp ing member. It will be further observed that the pressure of the arms is enhanced not only by the two spaced point contact of the fingers 27 with the shield but that since these fingers are not anchored at their ends shields of unusual and varying'breadth may be received.

In Figure 6 my invention is shown em bodied inanother form of bracket wherein the plate 16 is composed of overlapping secends.

plate ride, said ends having upturned ter- 1n1nal lip portions to famhtate lnsertion oi the shield.

10 In testimony whereol I have aflixed my signature.

CLARENCE E. MUNROE. 

